S e n d d o c u m e n t c o m m e n t s t o n e x u s 7 k - d o c f e e d b a c k @ c i s c o . c o m
7-29
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
OL-23069-06
Chapter 7 Managing the Switch Hardware
Saving the Module Configuration
Caution
Reloading a module disrupts traffic through the module.
Saving the Module Configuration
To save the new configuration to nonvolatile storage, use the
copy running-config startup-config
command from EXEC mode. Once you enter this command, the running and the startup copies of the
configuration are identical.
displays various scenarios when module configurations are preserved or lost.
.
Purging the Module Configuration
To delete the configuration in an empty slot or in a slot with a powered-down I/O module, use the
purge
module
slot
running-config
command from EXEC mode. This command clears the running
configuration for the specified slot. This command does not work on supervisor modules or on any slot
that currently has a powered-up module. This command only works on an empty slot (where the
specified module once resided) or on a slot with a powered-down I/O module.
The
purge module
command clears the configuration for any module that previously existed in a slot
and has since been removed or powered down. While the module was in that slot, some parts of the
configuration may have been stored in the running configuration and cannot be reused (for example, IP
addresses), unless you clear that from the running configuration.
For example, suppose you create an IP storage configuration with a 48-port 10/100/1000 Ethernet I/O
module in slot 3 in Switch A. This module uses an IP address. You decide to remove this I/O module and
move it to Switch B, and you no longer need the IP address. If you try to configure this unused IP address,
you will receive an error message that prevents you from proceeding with the configuration. In this case,
you need to enter the
purge module 3 running-config
command to clear the old configuration in Switch
A before using the IP address.
Table 7-9
Switching Module Configuration Status
Scenario
Consequence
A particular switching module is removed and you used
the
copy running-config startup-config
command again.
The configured module information is lost.
A particular switching module is removed and the same
switching module is replaced before you enter the
copy
running-config startup-config
command again.
The configured module information is
preserved.
A particular switching module is removed and replaced
with the same type switching module, and you entered the
reload module
number
command.
The configured module information is
preserved.
A particular switching module is reloaded when you enter
the
reload module
number
command.
The configured module information is
preserved.
